Integrated circuits 14 Very large scale integration 14 Human engineering 12 Biomedical engineering 10 Work design 8 Design and construction 6 Microwave communication systems 5 Radio frequency 5 Wireless communication systems 5 Application specific integrated circuits 4 Electric measurements 4 Electronic measurements 4 Industrial hygiene 4 Logic circuits 4 Microprocessors 4 Musculoskeletal system 4 Prevention 4 Semiconductor storage devices 4 Signal processing 4 Wounds and injuries 4 Biotechnology 3 Diagnostic imaging 3 Electronic apparatus and appliances 3 Electronic circuits 3 Imaging systems in medicine 3 Bridges 2 Earthquake resistant design 1 Maintenance and repair 1